
基本信息:
- 专利标题: 一种汽车大梁用热轧钢板及其生产方法
- 专利标题(英):Hot rolling steel plate for automobile girder, and production method thereof
- 申请号:CN201110279695.8 申请日:2011-09-20
- 公开(公告)号:CN103014487A 公开(公告)日:2013-04-03
- 发明人: 叶晓瑜 , 张开华 , 邱敏 , 刘勇 , 翁建军 , 左军 , 李卫平 , 李正荣
- 申请人: 攀钢集团攀枝花钢铁研究院有限公司
- 申请人地址: 四川省攀枝花市东区桃源街90号
- 专利权人: 攀钢集团攀枝花钢铁研究院有限公司
- 当前专利权人: 攀钢集团攀枝花钢铁研究院有限公司
- 当前专利权人地址: 四川省攀枝花市东区桃源街90号
- 代理机构: 北京润平知识产权代理有限公司
- 代理人: 王浩然; 王凤桐
- 主分类号: C22C38/12
- IPC分类号: C22C38/12 ; C21D7/13 ; B21B1/46 ; B21B37/74
The present invention provides a production method of a hot rolling steel plate for an automobile girder. The production method comprises a steelmaking step, a continuous casting step, a heating step, a hot continuous rolling step and a coiling step, and is characterized in that components of the molten steel after steelmaking comprise 0.05-0.08 wt% of C, less than or equal to 0.35 wt% of Si, 0.8-1.5 wt% of Mn, less than or equal to 0.025 wt% of P, less than or equal to 0.015 wt% of S, 0.03-0.08 wt% of V, 0.01-0.08 wt% of Nb, and the balance of Fe and unavoidable impurities, a finish rolling temperature is 800-900 DEG C, and a coiling temperature is 580-680 DEG C. The present invention further provides the hot rolling steel plate prepared by using the method and provided for the automobile girder. With the production method, the hot rolling steel plate for the automobile girder is successfully produced so as to substantially enrich and improve hot rolling product structures, wherein the produced hot rolling steel plate has a ferrite and pearlite structure, and has characteristics of high strength, high toughness, and good welding performance.
IPC结构图谱:
C | 化学;冶金 |
--C22 | 冶金(铁的冶金入C21);黑色或有色金属合金;合金或有色金属的处理 |
----C22C | 合金 |
------C22C38/00 | 铁基合金,例如合金钢 |
--------C22C38/12 | .含钨、钽、钼、钒或铌的 |